Channel Glaze Systems

Product Description

Channel glazing is a method of window glazing which uses a 'U' shaped aluminium channel with metal or rubber gaskets to hold the glass in place. Generally, where large glass panes are employed, they are integrated with an engineered glass fin or a tension truss system or similar. These systems are face sealed in the field and rely on sealant for weathering performance.

Frame Size

Channel size can vary but is commonly 30-50mm (or engineered to be greater at the head in order to allow for seismic movement).

Performance / Testing

  • AS/NZS1170 (Structural Design Actions)
  • NZS4223 (Glazing in Buildings)
  • NZS/AS4284:2008 (Water / Air Pressure/ Air Leakage - Meets and exceeds minimum requirements)

Maximum Spanning Ability

The spanning ability will vary depending on the structural system and environmental loads (e.g. wind).  Thermosash specifically engineers the best suite options to meet project requirements.

Thermosash Suites are recognized as having the largest spanning systems on the market due to our specific engineering capability and the customised nature of the work we complete.


The standard warranty is 10 years from the date of practical completion. This covers workmanship and weather tightness, providing the subcontract includes fabrication, installation and glazing of all components, and the maintenance schedule is adhered to.


Maintaining glass, metals and stone are all particular to the environment that they are placed in e.g. marine, environmental pollution, exposure to natural washing, etc.

It is recommended by almost all material suppliers that building washing should occur every 3-6 months to prevent staining to glass and prevent environmental pollutants from corroding metals and to maintain the material warranties.

A full maintenance manual is provided on completion of a project for all the elements integrated within a project. Compliance to a maintenance schedule is essential to maintaining the quality of the installed product over time. Using Thermosash-approved facade maintenance contractor/personnel ensures the highest standards are met.

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Key Features

  • An extremely versatile product - providing a modern low profile window suite.
  • Seamless incorporation of auto sliders, frameless glass doors etc.
  • Glazing channel can be recessed.
  • Frames and glazing are site installed.


Thermosash Channel Glazing - Brochure

April 2024

Channel Glazing System Product Disclosure - Documents Package



We recommend using Masterspec 4521TS Commercial Windows when specifying this suite.

CAD Downloads

Channel Glazing System - Single Glazed

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Channel Glazing System - Frameless Glass Auto Sliding Door

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Channel Glazing System - Glass Fin

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CG30 - Channel Glazing - Glass Fin

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CG60 - Channel Glazing - Single Glazed

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Relevant Projects

Lumley Tower

Lumley Tower


Peddle Thorp Aitken

Manson Developments


Giltrap Prestige Building

Giltrap Prestige Building


Warren & Mahoney



Commercial Bay Podium

Commercial Bay Podium


Warren and Mahoney Architects